WO2005000558A1 - Systeme d'inspection et de gestion de la fabrication de recipients - Google Patents

Systeme d'inspection et de gestion de la fabrication de recipients Download PDF

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Publication number
WO2005000558A1
WO2005000558A1 PCT/US2004/018736 US2004018736W WO2005000558A1 WO 2005000558 A1 WO2005000558 A1 WO 2005000558A1 US 2004018736 W US2004018736 W US 2004018736W WO 2005000558 A1 WO2005000558 A1 WO 2005000558A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
control
manufacturing machine
container manufacturing
signal
Prior art date
Application number
PCT/US2004/018736
Other languages
English (en)
Inventor
Frank E. Semersky
Ronald A. Puvak
Scott W. Steele
Donald Wayne Miller
William E. Schmidt
Original Assignee
Petwall, Llc
Agr International, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Petwall, Llc, Agr International, Inc. filed Critical Petwall, Llc
Priority to JP2006533759A priority Critical patent/JP2007503343A/ja
Priority to AU2004252118A priority patent/AU2004252118A1/en
Priority to CA002527707A priority patent/CA2527707A1/fr
Priority to BRPI0411109-5A priority patent/BRPI0411109A/pt
Priority to MXPA05013358A priority patent/MXPA05013358A/es
Priority to EP04755105A priority patent/EP1636013A4/fr
Priority to US10/560,161 priority patent/US7354538B2/en
Publication of WO2005000558A1 publication Critical patent/WO2005000558A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • G01B11/0691—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of objects while moving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C49/786—Temperature
    • B29C2049/7861—Temperature of the preform
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C49/786—Temperature
    • B29C2049/7867—Temperature of the heating or cooling means
    • B29C2049/78675—Temperature of the heating or cooling means of the heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C2049/787—Thickness
    • B29C2049/7871—Thickness of the extruded preform thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C2049/787—Thickness
    • B29C2049/78715—Thickness of the blown article thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C2049/7874—Preform or article shape, weight, defect or presence
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C2049/788—Controller type or interface
    • B29C2049/78805—Computer or PLC control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/42378—Handling malfunction
    • B29C49/4238—Ejecting defective preforms or products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C49/783—Measuring, controlling or regulating blowing pressure

Definitions

  • This invention relates to an apparatus and method for manufacturing plastic containers and, more particularly, to systems and methods for inspecting blow molded plastic containers which vary in quality from one of a myriad of parameters.
  • Description of the Prior Art Blow molding of plastic containers and other products is a well-known manufacturing process which typically commences with a heated thermoplastic preform disposed in a mold and caused to be filled with a pressurized fluid such as flow air to expand the preform to the shape of the interior of the associated mold. The pressure within the preform typically commences at approximately 70 psi and reaches approximately 550 psi during the blow cycle.
  • the wall thickness of the container being formed is designed to be relatively constant at any location on the container from cavity to cavity, the wall thickness of the finished container often times will vary from the desired thickness which may render the completed container unsatisfactory for commercial use. Because such defects are often not discovered until receipt by the customer and the filling thereof with a product, it is an important objective of the present invention to identify any variance from the standard during the blow molding process of the formation of the container. It is to be noted that the trend toward decreasing the wall thickness and the overall weight of the finished container tends to exacerbate the aforementioned problem. SUMMARY OF THE INVENTION Accordingly, it is an objective of the present invention to produce a system for monitoring the quality of a plastic container formed by a blow molding process.
  • the present invention concerns a container manufacturing system for the production of blow molded containers comprising: a container manufacturing machine having devices operating on a preform to produce a container; a machine control means connected to the devices for controlling the devices; a thickness monitor for generating a thickness signal representing an average wall thickness of the container produced by the container manufacturing machine; and a system control connected to the thickness monitor and being responsive to the thickness signal for generating a control signal, the system control being connected to the machine control means, the control signal being used by the machine control means for adjusting operation of the devices based upon the average wall thickness.
  • the devices include at least one of a pneumatic device, a heater and a mechanical device.
  • the present invention also concerns a method of controlling the production of blow molded containers including the steps of: a) producing a container in a container manufacturing machine; b) transporting the container from the container manufacturing machine; c) sensing a combined wall thickness at a location on the container and generating a signal representing an average wall thickness at the location on the container; and d) adjusting operation of the container manufacturing machine in response to the signal to effect the production of subsequent containers.
  • the method further can include performing steps a) through c) for a predetermined number of containers before performing step d).
  • Fig. 1 is a schematic view of a wall thickness measuring apparatus utilized in the inspection and control system according to the present invention
  • Fig. 2 is a schematic block diagram of a container manufacturing inspection and control system according to the present invention incorporating the wall thickness measuring apparatus shown in Fig. 1
  • Fig. 3 is a flow diagram of a method of operation of the inspection and control system shown in Fig. 1.
  • Fig. 1 there is shown generally at 10 a plastic container wall thickness measuring apparatus as described in International Patent Application PCT/USO1/06012 filed February 23, 2001, which application is incorporated herein by reference.
  • the apparatus 10 is utilized to measure the wall thickness of a plastic container 16, such a polyethylene terephthalate (PET), blow molded bottle.
  • An electrical distribution box 24 is coupled to a power source (not shown) by a first flexible power cord 25.
  • the bulbs (not shown) are coupled to a direct current (DC) power converter 26 by a second flexible power cord 27.
  • the DC power converter 26 is then coupled to the distribution box 26 by a third flexible power cord 28.
  • the electrical distribution box 24 provides the voltage necessary to power the bulbs.
  • At least one dense light diffuser 30 is disposed opposite a reflector (not shown) in the optical path of the light energy generated by the bulbs, and forms one wall of an enclosure 32.
  • a reflector not shown
  • two or more diffusers 30 are used.
  • the enclosure 32 encloses the bulbs and the reflector on all sides such that the light energy is directed only through the diffuser 30.
  • the diffuser 30 provides an area of uniform diffuse light, and is preferably positioned within the range of from about four to seven inches a sensor 34.
  • the diffuser 30 is configured to be of a height suitable to direct light energy through the maximum height of the plastic container 16 to be inspected, and preferably between one and 1.5 times wider than the width of the container 16 to be measured.
  • the light diffuser is within the range of from about three to about four inches wide, and from about five to about eight inches high.
  • the container 16 is typically carried on a conveyor 31 of a plastic container manufacturing machine, such as an exit conveyor of a machine for blow-molding plastic containers, and caused to travel between the emitter assembly and the sensor assembly at a uniform velocity.
  • the containers 16 will typically travel at a rate of from about two to about twenty containers per second.
  • the measuring apparatus 10 is shown associated with an exit conveyor of a machine for blow- molding plastic containers, the apparatus 10 can be used during any stage of the plastic container manufacturing process.
  • the apparatus 10 can be incorporated within a plastic container manufacturing machine, or can be used offline.
  • the sensor assembly further includes a sensor 34 for receiving the light energy emitted by the bulbs.
  • the sensor 34 must be sensitive to light energy within the range of from about 2.40 to about 2.50 microns.
  • sensors 34 made of lead sulfide (PbS) or lead selenide (PbSe) are sensitive within the range of from about 2.40 to about 2.50 microns.
  • the sensor 34 is made of PbS having a fast chemistry, the PbS sensor material being doped to enhance speed rather than sensitivity.
  • sensors made from PbS or PbSe are advantageous because they can be made in a small size, and have a simple electrical operation.
  • thermoelectric cooler will cause the sensor 34 to operate at about sixty-five degrees Fahrenheit, however operating temperatures as low as minus fifty degrees Fahrenheit may be achieved. It is important that reflection of the diffuse IR light energy from the front surface of the sensor 34 not be directed back at the container 16. Such a reflection can then be again reflected from the surface of the container 16 and produce an error in the measurement.
  • the front surface of the sensor 34 can be coated with a material which absorbs the light energy, such absorption will result in an undesirable increase in the heat load on the sensor 34. Therefore, it is more advantageous to construct the sensor 34 having a highly reflective surface, but having a surface angled such that any reflected light energy is directed away from the container 16.
  • the sensor 34 is disposed in a sensor enclosure 36.
  • a generally annular and planar chopper wheel 40 is disposed adjacent to the container 16 and on the opposite side of the container 16 from the diffuser 30.
  • the chopper wheel 40 is impermeable by IR light energy, and can be made of any rigid material, such as aluminum or plastic.
  • the chopper wheel 40 includes a plurality of circumferentially extending elongated slots 41.
  • the chopper wheel 40 may include more than two slots 41.
  • the chopper wheel 40 is caused to rotate by an electric drive motor (not shown).
  • the slots 41 in the chopper wheel 40 are arranged so that the light energy emitted by the bulbs, in the direction of sensor 34, will be interrupted as the chopper wheel 40 rotates.
  • the drive motor causes the chopper wheel 40 to rotate at a high speed such that the light energy passing through the container 16 is interrupted by the chopper wheel 40 within the range of from about ten to about five hundred times per second.
  • the rate of light energy interruption is within the range of from about two hundred to about three hundred times per second.
  • the chopper wheel 40 can disposed on the other side of container 16 between the container 16 and the light source 32.
  • a plate 44 is disposed between the chopper wheel 40 and the sensor 34.
  • the plate 44 includes an aperture 46 for limiting the area of the container 16 from which light energy can pass to the sensor 34, thereby limiting the area of the container 16 from which the wall thickness can be measured.
  • the aperture 46 has a generally rectangular shape, each side having a length within the range of from about two to about ten millimeters. The size of the aperture 46 limits the size of the area of the container 16 walls that can be measured and averaged to an area less than three hundred square millimeters.
  • the aperture 46 is a square shaped aperture having six millimeter sides, and is located within the range of from about one to about four inches from the sensor 34.
  • a narrow band pass light filter 48 is located between the plate 44 and the sensor 34.
  • the filter 48 is located as close as about one inch from to the sensor 34 so as to prevent stray, unfiltered light from reaching the sensor 34.
  • the filter 48 blocks all light energy not within an absorption band equal to the absorption band of the molecular structure of the resin used to manufacture the container 16.
  • a desirable absorption band occurs at about 2.44 microns. At 2.44 microns, the absorption band is largely insensitive to water vapor or other volatile materials which can be absorbed by the resin.
  • absorption band for PET resin occurs at about 2.44 microns
  • other absorption bands can be used in the invention.
  • absorption bands of about 2.92 microns or about 1.62 microns may also be selected and used.
  • a thin film interference filter will be used to provide the best narrow band pass with a high transmission in the desired IR range of about 2.40 to about 2.50 microns.
  • the filter 48 must be large enough to prevent any light energy from passing around the edges thereof, and to allow only filtered IR light energy to arrive on the sensor 34.
  • the filter 48 is located between the plate 44 and the sensor 34, it is understood that the filter 48 can be placed anywhere between the bulb and the sensor 34.
  • the signal from the sensor 34 is coupled by a shielded, low noise line 54, such as a twisted- wire pair, or a terminated coaxial cable, to a computer 56.
  • the computer 56 is coupled to the electronic distribution box 24 by a fourth flexible power cord 60.
  • the analog signal from the sensor 34 is converted to a digital signal by a digital signal converter disposed within the computer 56.
  • the plastic container wall thickness measuring system 10 operates by directing the sensor 34 toward a facing outer surface of the container 16.
  • the uniform diffuse IR light emitted through the diffuser 30 passes through two wall areas of the container 16 and to the sensor 34.
  • the diffuse light washes out the dark spots which can occur due to bumps, stria, and other irregularities in the sidewalls of the container 16.
  • the container 16 of a typical blow molding operation tends to have a uniform circumferential wall thickness.
  • wall thickness variations in the vertical axis of such a container 16 are difficult to control.
  • the wall thickness in the vertical axis is therefore frequently not uniform.
  • the computer 56 selects and averages from about five to about seven of the light readings having the highest intensity, and selects and averages from about five to about seven of the . dark readings having the lowest intensity. The average of the dark readings is then subtracted from the average of the light readings to result in an average intensity value for each chop cycle. Preferably, within the range of from about ten to about fifty such intensity values will be determined for each container 16 as each container passes between the emitter assembly and the sensor assembly.
  • the computer 56 then stores the value received, and preferably selects and averages from about three to about six of the highest intensity values from the about ten to about fifty values to result in an average intensity value for each container.
  • the computer 56 next compares the average intensity value for each container with stored measurement standards. Based on the stored measurement standards, the computer 56 then accepts or rejects each container 16, and displays the inspection result on a computer monitor 73. Because the sensors 34 can be quite small, it is also possible to stack a plurality of sensor assemblies vertically to obtain multiple thickness measurements at different positions along the vertical axis of the container 16. Such a stack of sensor assemblies can be used to constantly check a critical location on the container 16 and monitor vertical wall thickness distribution.
  • the optical wall thickness measurement apparatus 10 can be installed on the output conveyor of a high speed blow molding machine to measure the average wall thickness at one or more predetermined heights on every container 16.
  • the optical wall thickness measurement system 10 can be installed within a high speed blow molding machine to measure the average wall thickness at one or more predetermined heights on every container 16.
  • the optical wall thickness measurement apparatus 10 can make thickness measurements of both sidewalls on each container simultaneously.
  • multiple wall thickness measurements can be taken while the high-speed blow molding machine is operating at full production speed.
  • a control and inspection system 100 includes the method and the apparatus 10 for measuring wall thickness as described above.
  • the apparatus 10 is installed downstream from or inside a blow molding machine 101 that produces the plastic (PET) containers 16.
  • PET plastic
  • the blowing process employs a combination of machine controls 102 on a plurality of heaters 103 which reheat injection molded preforms to the blowing temperature as well as air pressure device functions 104 and mechanical device functions 105 used to stretch the preform into the blow mold configuration.
  • the control and inspection system 100 includes a system control 106 connected to the thickness monitor 10 to monitor the material distribution, connected to the pneumatic devices 104 and the mechanical devices 105 to monitor the machine functions, and connected to the heaters 103 to monitor temperature trends. Information obtained by the system control 106 can be displayed to a machine attendant on display device 107 for observation of real time data and data trends. The system control 106 may also reject the containers 16 if they reach a preset threshold value for any number of monitored variables.
  • This activity produces a large amount of data that must be quickly analyzed and presented in a meaningful format.
  • This data can be used to detect and then assist in controlling the production process.
  • This data can be fed back to the blow molding system machine controls 102 as well as be used to alert the machine attendant to other corrective action which may need to be taken.
  • This action can be initiated through manual means (human interaction) or through some automated method (such as software based solutions).
  • Material distribution defects may be correlated with the plurality of blowing mold stations employed on typical production machines.
  • the feedback control according to the present invention will generate the required recommended process control functions. These controls will allow for better process monitoring, less need for labor to intervene in the process, less random variation in the product, and lower the number of incidents of poor quality product being produced.
  • the system 100 is capable of gathering data including wall thickness measurements on the finished product as well as process variables which affect product quality and such information is displayed in a simple and easy to understand format. The data is then interpreted and fed back as control signals to the machine controls 102 of the blow molding machine 101.
  • the control and inspection system 100 or a software interface associated with the machine controls 102 can either alert the attendant of the corrective actions to be taken, or it can automatically begin a systematic correction of the process. Thickness and process data will be continually monitored and this will allow the feedback control to make incremental corrections as needed.
  • the system 100 may only acquire thickness data and use it for feedback control of the temperature profile, or other machine parameters.
  • the system 100 may acquire combinations of thickness, mold correlation, preform temperature, process temperature, and/or pressure profile to use for feedback control purposes.
  • the thickness data can be used with other acquired data to improve the control algorithm.
  • Such other acquired data might include, but is not limited to, air pressure at the devices 104, preform temperature from a sensor 108 (may be a plurality of such sensors distributed about the preform profile), ambient temperature from a sensor 109, and cam control positions from the mechanical devices 105.
  • the inspection and control system 100, the manufacturing machine 101 and the machine controls 102 can be based upon a commercially available blow molding machine such those available from Sidel, Inc. of Norcross, GA.
  • Fig. 3 is a flow diagram of the method of operation of the control and inspection system 100 according to the present invention.
  • the system 100 obtains the feedback signals from the thickness monitor 10, the heaters 103, the pneumatic devices 104, the mechanical devices 105, the preform temperature sensors 108 and/or the ambient air temperature sensor 109.
  • the system 100 calculates the trends from the feedback data.
  • the trends can be obtained by averaging the data over a predetermined number of containers. For example, the wall thickness data can be accumulated from a group of one hundred containers passing the thickness monitor 10 and averaged.
  • the system 100 displays the data real time.
  • the system 100 determines corrections, if any, to be made to the manufacturing process.
  • the machine 101 is operated by comparing actual data with target data.
  • Several software programs are commercially available that are suitable for accepting the compiled data and directing changes in the operation of the machine based upon the comparison with the target data.
  • the SIGBLOW software is available from the Canadian National Research Council in Montreal, Canada.
  • the HEATaix preform heating software from IKV of Aachen, Germany can be coupled with either the Abaqus (Pawtucket, RI) non-linear FEA material model software or the MSC.
  • Yet another program is the BlowView software from JAR Engineering of Kingsport, RI.
  • a variation of the Virtual PrototypingTM software of Plastic Technologies in Holland, OH is the preferred program.
  • the system 100 generates the necessary control signals to adjust the operation of the machine controls 102.
  • the system 100 can automatically adjust the operation of the manufacturing machine 101 based upon the data obtained from the feedback signals.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

Cette invention concerne un système et procédé de gestion d'une machine de fabrication pour récipients, faisant intervenir un contrôleur d'épaisseur (10) qui détermine l'épaisseur moyenne de la paroi des récipients produits. L'épaisseur moyenne de la paroi est utilisée pour modifier le fonctionnement de la machine et améliorer la qualité des récipients produits. Le système réagit également aux informations en retour provenant de dispositifs pneumatiques (104), d'éléments chauffants (103), de dispositifs mécaniques (105) et de sondes thermométriques (108, 109) pour déterminer les corrections à apporter au fonctionnement de la machine.
PCT/US2004/018736 2003-06-10 2004-06-10 Systeme d'inspection et de gestion de la fabrication de recipients WO2005000558A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2006533759A JP2007503343A (ja) 2003-06-10 2004-06-10 容器製造検査及び制御システム
AU2004252118A AU2004252118A1 (en) 2003-06-10 2004-06-10 Container manufacturing inspection and control system
CA002527707A CA2527707A1 (fr) 2003-06-10 2004-06-10 Systeme d'inspection et de gestion de la fabrication de recipients
BRPI0411109-5A BRPI0411109A (pt) 2003-06-10 2004-06-10 sistema de inspeção e controle para monitorar a produção de recipientes fabricados por moldagem a sopro, sistema de fabricação de recipientes para a produção de recipientes fabricados por moldagem a sopro, e método de controlar a produção de recipientes produzidos por moldagem a sopro
MXPA05013358A MXPA05013358A (es) 2003-06-10 2004-06-10 Sistema de inspeccion y control de la fabricacion de contenedores.
EP04755105A EP1636013A4 (fr) 2003-06-10 2004-06-10 Systeme d'inspection et de gestion de la fabrication de recipients
US10/560,161 US7354538B2 (en) 2003-06-10 2004-06-10 Container manufacturing inspection and control system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47722503P 2003-06-10 2003-06-10
US60/477,225 2003-06-10

Publications (1)

Publication Number Publication Date
WO2005000558A1 true WO2005000558A1 (fr) 2005-01-06

Family

ID=33551691

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WO2007110018A1 (fr) * 2006-03-29 2007-10-04 Khs Corpoplast Gmbh & Co. Kg PROCEDE ET DISPOSITIF DE FORMAge-SOUFFLAGE DE RECIPIENTS PAR RECOURS A LA MESURE DE L'EPAISSEUR DE PAROIS DE L'OBJET FACONNE
WO2008080452A1 (fr) * 2006-12-22 2008-07-10 Krones Ag Procédé de fabrication de récipients
EP2247429B1 (fr) 2008-03-06 2014-01-08 KHS Corpoplast GmbH Procédé et dispositif de moulage par soufflage de récipients
EP3273243A2 (fr) 2016-07-19 2018-01-24 Ajinomoto Co., Inc. Procédé de criblage d'une substance modifiant le goût salé
EP2188108B2 (fr) † 2007-09-21 2023-02-22 KHS GmbH Procédé de moulage par soufflage de récipients
WO2023149441A1 (fr) 2022-02-03 2023-08-10 味の素株式会社 Procédé de criblage d'une substance qui supprime l'odeur de 4-méthylacétophénone, et procédé de suppression de l'odeur de 4-méthylacétophénone

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DE102009035868A1 (de) * 2009-07-31 2011-02-03 Krones Ag Vorrichtung zum Umformen von Kunststoffvorformlingen mit synchroner Erwärmung und Reckung
DE102009040803A1 (de) * 2009-08-25 2011-04-14 Khs Corpoplast Gmbh & Co. Kg Verfahren und Vorrichtung zur Blasformung von Behältern
WO2011047226A1 (fr) * 2009-10-15 2011-04-21 Plastic Technologies, Inc. Procédé et appareil pour moulage par soufflage en boucle fermée
US9146099B2 (en) * 2010-07-07 2015-09-29 Graham Packaging Company, L.P. Method and system for thermally monitoring process for forming plastic blow-molded containers
EP2447172A1 (fr) * 2010-11-02 2012-05-02 Stefano Boido Dispositif pour chauffer des récipients
CN102649310A (zh) * 2011-02-23 2012-08-29 海洋王照明科技股份有限公司 Pc薄壁件的成型工艺及成型设备
JP6133872B2 (ja) * 2011-09-06 2017-05-24 コッヒャー−プラスティック マシーネンバウ ゲゼルシャフト ミット ベシュレンクテル ハフツング 指定された容器製品の特性の存在を確立するための方法及び該方法を実行する装置
FR2988846B1 (fr) * 2012-03-27 2014-04-11 Msc & Sgcc Procede et installation de mesure de la repartition de verre dans des recipients
FR2994887B1 (fr) * 2012-08-28 2016-04-15 Snecma Dispositif et procede pour la realisation de preformes
JP2016529139A (ja) * 2013-08-12 2016-09-23 エイジーアール インターナショナル，インコーポレイテッド ブロー成形制御システムおよび方法
WO2015058302A1 (fr) * 2013-10-23 2015-04-30 Ats Automation Tooling Systems Inc. Système et procédé de décoration de multiple pièces
FR3017327B1 (fr) * 2014-02-12 2016-03-04 Sidel Participations Procede et dispositif de fabrication de recipients a partir d'ebauches, avec detection de defauts d'ouverture d'electrovannes
WO2017192763A1 (fr) * 2016-05-03 2017-11-09 Niagara Bottling, Llc Systèmes et procédés de mesure optique de l'épaisseur de paroi d'un récipient
KR101891881B1 (ko) * 2016-07-19 2018-08-24 배민준 성형품의 무게를 일정하게 유지하면서 블로우 몰딩하는 장치
US10919207B2 (en) * 2017-09-21 2021-02-16 Integrated Plastics Pty Limited Blow moulding machine, preforms, system and process
WO2019104394A1 (fr) 2017-11-30 2019-06-06 Integrated Plastics Pty Limited Préformes pour récipients moulés par étirage-soufflage et machine de moulage par soufflage continu produisant les récipients
US11897178B2 (en) 2018-12-04 2024-02-13 Dai Nippon Printing Co., Ltd. Plastic bottle manufacturing device and plastic bottle manufacturing method
US11305977B2 (en) * 2019-02-12 2022-04-19 Berry Global, Inc. Container-filling system
WO2020226921A1 (fr) * 2019-05-07 2020-11-12 Agr International, Inc. Entretien préventif prédictif pour processus de production de formation de récipient
FR3102703B1 (fr) * 2019-10-30 2021-11-12 Sidel Participations Procédé de contrôle d’un récipient en matière plastique et machine de fabrication d’un tel récipient
DE102019132655A1 (de) * 2019-12-02 2021-06-02 Krones Aktiengesellschaft Verfahren zum Überprüfen einer Wandstärke eines Behälters aus einem zumindest teilweise transparenten Material
DE102021128918A1 (de) * 2021-11-05 2023-05-11 Krones Aktiengesellschaft Vorrichtung und Verfahren zum Herstellen von Kunststoffbehältnissen mit Inspektion

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007110018A1 (fr) * 2006-03-29 2007-10-04 Khs Corpoplast Gmbh & Co. Kg PROCEDE ET DISPOSITIF DE FORMAge-SOUFFLAGE DE RECIPIENTS PAR RECOURS A LA MESURE DE L'EPAISSEUR DE PAROIS DE L'OBJET FACONNE
JP2009531196A (ja) * 2006-03-29 2009-09-03 カーハーエス コーポプラスト ゲーエムベーハー ウント コンパニー カーゲー 容器をブロー成形するための方法および装置
US7887742B2 (en) 2006-03-29 2011-02-15 Khs Corpoplast Gmbh & Co. Kg Process and apparatus for the blow molding of containers using wall-thickness measurement of the molded article
CN101432122B (zh) * 2006-03-29 2012-08-01 Khs科波普拉斯特两合公司 用于吹塑成形容器的方法和装置
WO2008080452A1 (fr) * 2006-12-22 2008-07-10 Krones Ag Procédé de fabrication de récipients
EP2188108B2 (fr) † 2007-09-21 2023-02-22 KHS GmbH Procédé de moulage par soufflage de récipients
EP2247429B1 (fr) 2008-03-06 2014-01-08 KHS Corpoplast GmbH Procédé et dispositif de moulage par soufflage de récipients
US9545748B2 (en) 2008-03-06 2017-01-17 Khs Corpoplast Gmbh Method and device for blow-molding containers
EP3273243A2 (fr) 2016-07-19 2018-01-24 Ajinomoto Co., Inc. Procédé de criblage d'une substance modifiant le goût salé
WO2023149441A1 (fr) 2022-02-03 2023-08-10 味の素株式会社 Procédé de criblage d'une substance qui supprime l'odeur de 4-méthylacétophénone, et procédé de suppression de l'odeur de 4-méthylacétophénone

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US7354538B2 (en) 2008-04-08
MXPA05013358A (es) 2006-05-19
US20060214321A1 (en) 2006-09-28
JP2007503343A (ja) 2007-02-22
CA2527707A1 (fr) 2005-01-06
EP1636013A1 (fr) 2006-03-22
EP1636013A4 (fr) 2009-09-30
BRPI0411109A (pt) 2006-07-18
AU2004252118A1 (en) 2005-01-06

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